[fziegler]

However, I'm not sure how it could be creating folders on the SD card then unless you also set the MobileSheets storage location to the same SD card folder you are using. If you did this, that would be problematic for determining the root cause of the problem.

That's exactly what I did: use the same directory for my files (PDFs and audio) and for MobileSheets' storage. I thought this could be best practice in order to get both MSP's import files and my files integrated in one storage place.

I'm not sure any more that there is a problem. Looks more like a design choice from your side, if only 'import local file' allows to not have files being copied.

Are there other strategies? In the end, I want to be able to easily sync a second tablet for backup.